An octanuclear 3-phenyl-5-(2-pyridyl)pyrazolate/phenylsilsesquioxane complex: synthesis, unique structure, and catalytic activity

Alexey N. Bilyachenko; Victor N. Khrustalev; Zhibin Huang; Lidia S. Shul'pina; Pavel V. Dorovatovskii; Elena S. Shubina; Nikolay S. Ikonnikov; Nikolai N. Lobanov; Karim Ragimov; Di Sun

doi:10.1039/D4DT02690J

An octanuclear 3-phenyl-5-(2-pyridyl)pyrazolate/phenylsilsesquioxane complex: synthesis, unique structure, and catalytic activity†

Alexey N. Bilyachenko,

*^ab Victor N. Khrustalev,

^ac Zhibin Huang,^b Lidia S. Shul'pina,^a Pavel V. Dorovatovskii,

^d Elena S. Shubina,

^a Nikolay S. Ikonnikov,^a Nikolai N. Lobanov,

^b Karim Ragimov

^e and Di Sun

^f

Author affiliations

* Corresponding authors

^a A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS), Vavilov St. 28, 119991 Moscow, Russian Federation
E-mail: bilyachenko@ineos.ac.ru

^b Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, 117198 Moscow, Russian Federation

^c Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospect, 119991 Moscow, Russian Federation

^d National Research Center “Kurchatov Institute”, 1 Akademika Kurchatova Pl., 123182 Moscow, Russian Federation

^e Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan

^f Shandong University, Department of Chemistry and Chemical Engineering, Shanda South Road 27, 250100 Jinan, China

Abstract

The first metallasilsesquioxane bearing pyrazolylpyridine ligands, the Cu₈-based complex 1, adopts a cage-like structure with two zigzag-type copper tetramers sandwiched by two cyclic Si₅ silsesquioxane ligands. The four 3-phenyl-5-(2-pyridyl)pyrazolate ligands in 1 exhibit dual (chelating and bridging) modes of ligation. Compound 1 is very active in the oxidation of alkanes and alcohols.

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An octanuclear 3-phenyl-5-(2-pyridyl)pyrazolate/phenylsilsesquioxane complex: synthesis, unique structure, and catalytic activity†

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An octanuclear 3-phenyl-5-(2-pyridyl)pyrazolate/phenylsilsesquioxane complex: synthesis, unique structure, and catalytic activity

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